Stair-tread.



Nd. 652,348.` Patnted June 2s, |900.

Y w. l. cnAwFoRn.

(No Model.)

5 mmm: to@

UNITED STATES EEICE.

PATENT STAlR-TREAD.

SPECIFICATION forming part of Letters Patent N o. 652,348, dated June 26, 1900. Application filed November 9,1899. Serial No. 736.409. (No model.)

To all whom, it may concern.-

Be it kn own that I, WILLIAM I. CRAWFORD, a citizen of the United States, residing at Sharpsville, in the county of Mercer and State of Pennsylvania, have invented'certain new and useful Improvements in Stair -'Treads and I do declare the following to be alfull, clear, and exact descriptionof the invention, such as will enable others skilled in the art to which it appertains to Inake and use the same."

The invention relates to stair-treads.

The object of the invention is to provide a stair-tread which shall be simple of construction,` durable in use, and comparatively-inexpensive of production, which will form practically a noiseless tread in ascending or descending the stairs, and will always present a clean surface.

To this end the invention consists in certain features of construction and combination of parts, which will be hereinafter fully described and claimed.

Inthe accompanying drawings, Figure l is a perspective view illustrating my invention applied to a flight of stairs. Fig. 2 is a similar View showing the treads stacked when off the steps. Fig. 3 is anenlarged top plan View.

In the drawings the same reference characters indicate the same parts of the invention.

l denotes a series-of transversely-arranged coiled wires which may or may not be interlocked.

2 denotes stiff rods extending through the end and centralcoils of the transverse wires. These rods double upon themselves, as shown. One of the ends of each of the rods is longer than the other end and is bentaround the same to form a neatand strong joint.

3 denotes transverse securing-rods which extend transversely through the coils andare doubled upon themselves. The bights of these rods are bent downwardly to hook under the edge of the tread ofthe step, while the other ends of these rods are formed with eyes to engage headless screws 4 or other appliances,

secured in the' tread of the step near its rear edge.

A tread of this construction may be Inade at small cost and may be easily and quickly applied to and removed from steps. When in use, it forms practically a noiseless tread and always presents a clean surface, as dirt and foreign matter will be caught byand sifted through the wire tread onto the tread of the step and may be easily and quickly swept therefrom by removing the wire tread.

It will of course be understood that various changes in the form, proportion, and the mi-V nor details of construction may be resorted to without departing from `the principle or saorificing any of the advantages of'this invention. I

Having thus described the invention, what is claimed, and desired to be secured-by Letters Patent, is-

1. A wire stair-tread comprising the trans= verse rows of coiled wires connected together, and transverse securing-rods extending trans= versely through said coiled wires, and pro-` vided with means for fastening the device in position1 substantially as and for the purpose set forth. y Y `f y 2. A wire stair-tread comprising transverse coiled wires, longitudinal rods doubled upon themselves and passed longitudinallythrough the coils of said wires andhaving their ends secured together, and transverse securing; wires extending transversely through the coiled wires andprovided with a hook at one end and an eye at the other to secure the tread in position,`substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit nesses.

WILLIAM I. CRAWFORD.

Witnesses:

BENJ. G. COWL, EMMA M. GILLETT'. 

